ATIS Elevator Consulting, formerly KH Lemp, provides a variety of vertical transportation services to building owners, developers, architects and contractors. Whether it be design and development services to determine the extent of renovation required for existing equipment, construction document preparation, the identification of associated building work with elevator construction and renovation projects, vertical transportation analysis, maintenance contract conformance evaluations, or due diligence reports for potential building buyers, ATIS provides professional service by consultants with experience and knowledge of the elevator industry. ATIS also happens to be North America's largest elevator inspection firm and can witness periodic testing as required by various AHJs and government organizations.